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#! /usr/bin/env python
# Newspipe - A web news aggregator.
# Copyright (C) 2010-2023 Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information: https://sr.ht/~cedric/newspipe
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 0.4 $"
__date__ = "$Date: 2013/11/05 $"
__revision__ = "$Date: 2014/04/12 $"
__copyright__ = "Copyright (c) Cedric Bonhomme"
__license__ = "GPLv3"
from datetime import datetime
from sqlalchemy import Index, desc, ForeignKeyConstraint
from sqlalchemy.orm import validates
from newspipe.bootstrap import db
from newspipe.models.article import Article
from newspipe.models.right_mixin import RightMixin
class Feed(db.Model, RightMixin):
"""
Represent a feed.
"""
id = db.Column(db.Integer(), primary_key=True)
title = db.Column(db.String(), default="")
description = db.Column(db.String(), default="FR")
link = db.Column(db.String(), nullable=False)
site_link = db.Column(db.String(), default="")
enabled = db.Column(db.Boolean(), default=True)
created_date = db.Column(db.DateTime(), default=datetime.utcnow)
filters = db.Column(db.PickleType, default=[])
private = db.Column(db.Boolean(), default=False)
# cache handling
etag = db.Column(db.String(), default="")
last_modified = db.Column(db.String(), default="")
last_retrieved = db.Column(db.DateTime(), default=datetime(1970, 1, 1))
# error logging
last_error = db.Column(db.String(), default="")
error_count = db.Column(db.Integer(), default=0)
# foreign keys
icon_url = db.Column(db.String(), db.ForeignKey("icon.url"), default=None)
user_id = db.Column(db.Integer(), db.ForeignKey("user.id"))
category_id = db.Column(db.Integer(), db.ForeignKey("category.id"))
# relationship
articles = db.relationship(
Article,
backref="source",
lazy="dynamic",
cascade="all,delete-orphan",
order_by=desc(Article.date),
)
__table_args__ = (
ForeignKeyConstraint([user_id], ["user.id"], ondelete="CASCADE"),
ForeignKeyConstraint([category_id], ["category.id"], ondelete="CASCADE"),
ForeignKeyConstraint([icon_url], ["icon.url"]),
Index("ix_feed_uid", user_id),
Index("ix_feed_uid_cid", user_id, category_id),
)
# idx_feed_uid_cid = Index("user_id", "category_id")
# idx_feed_uid = Index("user_id")
# api whitelists
@staticmethod
def _fields_base_write():
return {
"title",
"description",
"link",
"site_link",
"enabled",
"filters",
"last_error",
"error_count",
"category_id",
}
@staticmethod
def _fields_base_read():
return {"id", "user_id", "icon_url", "last_retrieved"}
@validates("title")
def validates_title(self, key, value):
return str(value).strip()
@validates("description")
def validates_description(self, key, value):
return str(value).strip()
def __repr__(self):
return "<Feed %r>" % (self.title)
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